Tandem roller



F. A. BROWNE;

TANDEM ROLLER. APPLICATION mu) FEB. 12. 1911.

1,322,092. Patented Nov. 18, 1919.

2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

FRANK A. BROWNE, OF BUFFALO, NEW YORK, ASSIGNOB, TO THE BARBER ASPHALT PAVING I COMPANY, OF PHILADELPHIA, PENNSYLVANIA,

WEST. VIRGINIA.

TANDEM ROLLER. 1

A CORPORATION OF Application filed February '12, 1917. Serial No.'148,173. 7

To all who-m itmag concern:

Be it known that I, FRANK A. BROVVNE,':

of' New York, have invented certain new Tandem. Rolland useful Improvements in ers, whereof the followingis a specification, reference being had to the accompanying drawings.

My invention relates toi'theutilization of the roller or v the receptacle for the water .or liquid fuel which is used to drive the engine or motor. My device is equally applicable to a steamdriven roller, in which case water is thus stored, or to a vehicle driven by a motor using any form of liquid fuel which may be similarly stored. According to my inven tion the roller is provided with openings and pipe connections, whereby water or other liquid may be continuously fed into and as continuously withdrawn from the interior of the roller, notwithstanding the rotation of the same in the operation of the tandem roller.

To this end I provide a nonrotating axle about which the roller rotates, having inlet and outlet ducts, whereby the liquid fuel may be admitted to and withdrawn from the interior of the roller. I further provide a downwardly projecting extension in c-onnec' tion with the outlet duct, which can always reach the liquid in the lower portion of the roller, irrespective of its rotation.

In the accompanying drawings, Figure I, is a side elevation of the rear roller of a tandem roller, certain adjoining parts being also shown. 7

Fig. II, is a central vertical section along the line II, II, of Fig. I.

I have shown my invention as applied to the rear or driving roller of a tandem roller, but it is to be understood that it is not thus limited.

The invention comprises generally a hollow roller 1, rotatably mounted on the fixed axle or shaft 3, which, in turn, is provided with inlet and outlet ducts 12, and 11, respectively.

Roller 1, is provided on one Side with a beveled gear 8, by which it may be driven through any appropriate mechanism. Bosses 2, are formed on the inside of roller 1, and projects inwardly at the axis thereof, forming journal boxes which rotate about axle 3.

rollers of a tandem roller, as

Axle 3, is prevented from rotation by set screws 5, by means ofwhich it is held in place and fixed in bracket blocks 6, which are 1n turn rigidly bolted-to the side frame 7, of

-,the roller. Roller 1, therefore, rotates about axle 3-, and a sufiicientlytight joint is provided-by stuiiing. boxes 10, to effectually prevent the escape of any liquid containedwithin'the roller; e

In order to provide for the admission of the fluid into the interior of roller 1, I pro vide axle 3, with an axially located duct 12, extending from one end'of the axle to a point well within the roller, where it connects with duct 17 which leads to the interior of roller 1. The outer end of duct 12, is connected with a pipe 15, which leads to a covered storage receptacle 16, which may be filled from a hose or bucket or other source of supply.

The fluid may be drawn from the roller by means of a similar duct 11, which is also formed axially of shaft 3, but extends to the opposite end from that of duct 19;. At its exterior end it is connected with a pipe 13, which passes to a feed pump or injector, as the case may be, whereby the water, fuel, or other liquid in the interior of the roller may be continuously withdrawn from the roller during its rotation. The interior end of duct 11, which is well within the roller, beyond the limits of boss 2, is connected with pipe 18, whichextends downwardly reach ing almost to the bottom of the roller, so that liquid may always be withdrawn from the bottom of the roller, irrespective of its position. Pipe 18, may be conveniently provided at its lower end with a suitable strainer 19.

WVith this arrangement the roller may be maintained continuously filled with liquid from which at all times a supply may be drawn by the feed pump or injector, which withdrawal in itself eifects a replacement of a similar amount within the roller, from the storage receptacle. For purposes of construction of asphalt roads, it is highly advantageous to have the compressing roller continuously filled with liquid for the purpose of absorbing the heat of the asphalt surface, upon which the roller runs. It is similarly advanta eous to preheat the water or other liquid be-Iorc feeding it.to the boiler. It is likewise desirable that the roller be at Patented Nov. 18, 1919. I

all times continuously filled with liquid in order that its center of gravity may be maintained constant.

The roller may be also provided with a manhole 22, and a gage 20, if desired. There may further be provided near the bottom of the roller a plugged opening 24, for filling from a pipe line or for draining the interior of the roller.

It is obvious that my invention is not limited to the precise form shown, but may be altered as to design of structure and detail, without departingthereof.

Having thus described my invention, I claim:

In a self-propelled vehicle, the combination of a non-rotating axle; a closed hollow roller, capable of acting as a tank for liquid, rotatably mounted thereon; said roller being from the spirit provided with packed journal boxes around said axle; said axle having inlet and outlet ducts formed therein, and extending from each end of said axle to points Within the interior of the roller; a receptacle for liquid with Which the inlet duct is in communication, a motor connection with which the outlet duct is in communication; whereby liquid maybe continuously drawn from the receptacle, through the hollow roller, and fed to the motor, the interior of the roller being thus constantly wholly filled with said liquid.

In testimony whereof, I have hereunto signed my name, at Bufialo, New York, this sixth day of February, 1917.

FRANK A. BROWNE. lVitnesses: i l i i JOHN H. MoRrAR'rY, HENRY SoH'oELLHoRN. 

